Heat Waves

• How extreme heat and humidity fuels more dangerous storms — and tornadoes

  As heat waves blanket parts of Canada, experts say the extreme heat and humidity can also 'fuel' severe thunderstorms — and even tornadoes.

  Environment

  Jul 14
  
• Human-made climate change made 10 summer heat waves more likely: experts

  Environment and Climate Change Canada said several heat waves this summer were twice as likely to be due to human-made climate change, with one 10 times more likely.

  Canada

  Sep 17, 2025
  
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• As heat waves become more common, air conditioning use is rising: StatCan

  As heat waves become more common, Statistics Canada is out with a new report which shows who still doesn't have air conditioning and why.

  Health

  Jul 8, 2025
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• Global heat waves could become ‘new normal’ without swift action: experts

  "No more hesitancy, no more excuses, no more waiting for others to move first. There is simply no more time for that," UN Secretary-General Antonio Guterres said.

  Weather

  Jul 28, 2023
• G20 environment ministers to meet amid record heat. Can Canada lead the way?

  The meeting comes just days after Canada became the first G20 country to roll out a plan to phase out 'inefficient' fossil fuel subsidies.

  Canada

  Jul 27, 2023
• Combo of extreme heat, air pollution may increase risk of deadly heart attack: study

  During a two-day heat wave, the likelihood of a fatal heart attack increased by 18 per cent when temperatures ranged between 28 C and 37 C.

  Health

  Jul 26, 2023
• July heat waves in U.S., Europe ‘virtually impossible’ without climate change: experts

  Several climate scientists say this month's heat is likely the hottest Earth has been in about 120,000 years, easily the hottest of human civilization.

  Weather

  Jul 25, 2023
• Quebec farmers improve soil as water supply becomes less reliable amid climate change

  Southern Quebec appears to be awash in water, but farmers say dry spells and heat waves are increasingly drying out the ground and threatening their crops.

  Environment

  Oct 27, 2022
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• Most of Ontario under heat warnings as province set to get hot and humid this week

  The heat warnings stretch from Kenora to North Bay, with temperatures expected to hit 30 C and feel more like 36 C with humidity Monday and possibly Tuesday.

  Weather

  Jul 18, 2022
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• Extreme heat emergencies to be added to B.C. alert system

  The province has been under intense pressure to act after the BC Coroners Service concluded 595 people died from “heat-related deaths” in between June 18 and Aug. 12, 2021.

  Environment

  Jun 6, 2022